Genetic Testing for Autosomal Dominant Hypercholesterolemia

APOB Mutation-Negative

December 2008

If an APOB mutation is not identified, then testing is automatically reflexed to LDLR sequencing. This involves bidirectional, fluorescent sequencing of all 18 exons and the promoter of LDLR. Sequencing of LDLR will detect approximately 85-90% of all LDLR mutations.

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APOB Mutation-Negative

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Jump to section:

• Introduction
• Autosomal Dominant Hypercholesterolemia
• Autosomal Dominant Hypercholesterolemia
• Autosomal Dominant Hypercholesterolemia
• Familial Hypercholesterolemia
• FH-Primary Defect in LDLR
• LDLR Gene
• LDLR Gene
• Familial Defective ApoB-100
• How is ADH Diagnosed?
• Impact of Failure to Diagnose
• Why is Genetic Testing for ADH Useful?
• Statin Treatment-How Early?
• ADH-Genetic Testing Methodology
• Familial/Autosomal Dominant Hypercholesterolemia Diagnostic Algorithm
• APOB-Targeted Genotyping Performed First
• APOB Mutation-Positive
• APOB Mutation-Negative
• LDLR Sequence Mutation-Positive
• LDLR Sequence Mutation-Negative
• LDLR Large Del/Dup Mutation-Positive
• LDLR Large Del/Dup Mutation-Negative
• Summary
• Conclusion
• Questions?